74845805 has 18 divisors (see below), whose sum is σ = 92812734. Its totient is φ = 57942144.

The previous prime is 74845777. The next prime is 74845847. The reversal of 74845805 is 50854847.

It can be written as a sum of positive squares in 9 ways, for example, as 2067844 + 72777961 = 1438^2 + 8531^2 .

It is not a de Polignac number, because 74845805 - 2⁶ = 74845741 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1025249 + ... + 1025321.

It is an arithmetic number, because the mean of its divisors is an integer number (5156263).

Almost surely, 2^74845805 is an apocalyptic number.

It is an amenable number.

74845805 is a deficient number, since it is larger than the sum of its proper divisors (17966929).

74845805 is an frugal number, since it uses more digits than its factorization.

74845805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 74845805 is about 8651.3470049467. The cubic root of 74845805 is about 421.4271274762.

The spelling of 74845805 in words is "seventy-four million, eight hundred forty-five thousand, eight hundred five".